Leaking oil cooler? Best fix?
#1
Leaking oil cooler? Best fix?
I noticed the other day that I had a spot of oil on the floor under my mini. I put it up on ramps, and took and look at it. As far as I can tell, it's coming from somewhere around the oil cooler area.....but I'm not 100% positive. I cleaned everything up, wiped it all off and thought I would be able to see where it's coming from the next day. Well, this morning I pulled the car out of the garage and not it's left an even bigger spot...around a 2" round puddle of oil.
Are the oil cooler assemblies that are attached to the oil filter housing prone to leaking? If so...is there a seal that needs to be replaced, or does the entire cooler need to be replaced?
Anything else in that area that could be leaking? It's not the filter.....
Thanks!
Are the oil cooler assemblies that are attached to the oil filter housing prone to leaking? If so...is there a seal that needs to be replaced, or does the entire cooler need to be replaced?
Anything else in that area that could be leaking? It's not the filter.....
Thanks!
#3
The heat exchanger or oil cooler has 2 replaceable seals. Trick used to seat em properly still prior to buttoning up has been to apply a thin dab of gasket-friendly grease as temporary glue.
It's not a difficult DIY....or, you may replace the heat exchanger or upgrade to an aftermarket 1.
It's not a difficult DIY....or, you may replace the heat exchanger or upgrade to an aftermarket 1.
#7
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#8
#11
https://www.northamericanmotoring.co...this-part.html
Here is the parts and the diagram and install.
Here is the parts and the diagram and install.
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Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
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MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
#12
#14
Well, hopefully I can see where it's leaking from when I dig into it tomorrow. I thought about ordering gasket #7, but I didn't. I guess I can always use some RTV or liquid gasket on it to seal it up if it's leaking from that #7 seal.
#15
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#16
Did you find the exact leak yet ?
__________________
MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
#17
Actually, when I started digging into it this weekend to fix the leaking oil cooler.....I discovered that the spots in my garage weren't from the leaking cooler, it was from all of the oil/grease that got thrown out of the cracked inner CV boot on the passenger side. That stuff is a sticky mess....it took me longer to clean it all up than it did to take the CV shaft apart and get to the cracked boot.
As soon as the new boot shows up, I'll be able to get it all back together...clean everything up, and then run it for a while and make sure the drips in the garage have stopped.
As soon as the new boot shows up, I'll be able to get it all back together...clean everything up, and then run it for a while and make sure the drips in the garage have stopped.
#18
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#22
****UPDATE****
Well, I found the torn CV boot....fixed it, and then I was still getting the oil drips on the garage floor. The drips seemed to be coming from the bottom of the oil cooler. So I replaced the two o-rings on the faceplate of the cooler...and I thought all was good. Then after a week with no leaks.....I'm starting to get little drips on the garage floor in the same spot.
What else is there is that general area (oil cooler area) that is pretty common to leak? I checked the valve cover gasket, oil pan gasket, and checked to make sure the oil filter housing was tight.....all checked out fine.
Any other ideas? I hate leaks!!
Well, I found the torn CV boot....fixed it, and then I was still getting the oil drips on the garage floor. The drips seemed to be coming from the bottom of the oil cooler. So I replaced the two o-rings on the faceplate of the cooler...and I thought all was good. Then after a week with no leaks.....I'm starting to get little drips on the garage floor in the same spot.
What else is there is that general area (oil cooler area) that is pretty common to leak? I checked the valve cover gasket, oil pan gasket, and checked to make sure the oil filter housing was tight.....all checked out fine.
Any other ideas? I hate leaks!!
#23
****UPDATE**** Well, I found the torn CV boot....fixed it, and then I was still getting the oil drips on the garage floor. The drips seemed to be coming from the bottom of the oil cooler. So I replaced the two o-rings on the faceplate of the cooler...and I thought all was good. Then after a week with no leaks.....I'm starting to get little drips on the garage floor in the same spot. What else is there is that general area (oil cooler area) that is pretty common to leak? I checked the valve cover gasket, oil pan gasket, and checked to make sure the oil filter housing was tight.....all checked out fine. Any other ideas? I hate leaks!!
#24
#25
No it is not -- its number 7 in this image:
http://www.realoem.com/bmw/showparts...95&hg=11&fg=30
Sold by ECS tuning here:
http://www.ecstuning.com/Mini-2006-C...Seals/ES23998/
http://www.realoem.com/bmw/showparts...95&hg=11&fg=30
Sold by ECS tuning here:
http://www.ecstuning.com/Mini-2006-C...Seals/ES23998/